Sharp 14GT15, Service Manual

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14GT15
14GT20
FUNCTION OPERATION CHECKING (VIDEO AND AUDIO)
No. Adjusting point Adjusting procedure/conditions Waveform and others
CONTRAST
key 1. Receive "Monoscope Pattern" signal.
2. Set P-Mode to select CONTRAST.
3. Press Volume Up/Down key to check whether the
CONTRAST effect is OK or not.
1
1. Receive "Color Bar" signal.
2. Set P-Mode to select COLOUR.
3. Press Volume Up/Down key to check whether
the COLOUR effect is OK or not.
2
COLOUR key
BRIGHTNESS
key 1. Receive "Monoscope Pattern" signal.
2. Set P-Mode to select BRIGHTNESS.
3. Press Volume Up/Down key to check whether
the BRIGHTNESS effect is OK or not.
3
TINT key 1. Receive the "NTSC Colour Bar" signal thru AV in.
2. Set P-Mode to select TINT.
3. Press Volume Up/Down key to check TINT, UP
for GREEN direction and DOWN for PURPLE di-
rection whether is OK or not.
4
SHARPNESS
Key 1. Receive "Monoscope Pattern" signal.
2. Set P-mode to select SHARPNESS.
3. Press Volume Up/Down key to check whether
the SHARPNESS effect is OK or not.
5
WHITE TEMP 1. Receive "Monoscope Pattern" signal.
2. Set FUNCTION to select WHITE TEMP.
3. Press Volume Up/Down key to check WHITE
TEMP Option, STANDARD:
NORMAL SETTING, WARM for more REDDISH
direction changing, COOL for more BLUISH di-
rection changing.
8
NORMAL Key 7 1. Once in PICTURE Mode, and the NORMAL key
is pressed, all the settings will be present to nor-
mal setting.
(Normal setting value for every mode).
»
CONTRAST : MAX
»
COLOUR : CENTER
»
BRIGHTNESS : CENTER
»
TINT : CENTER
»
SHARPNESS : CENTER
Notes:If nothing is display
mean contrast, colour, bright,
tint, sharpness are all in nor-
mal setting.
CH DISPLAY
COLOUR 1. All Ch (1~99) will have an OSD display of the
channel number in green colour under AFT ON
condition.
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